Nut-lock.



B. V. APFELD.

NUT LOCK.

APPLICATION FILED APR.12,1915.

1,170,866. Patented Feb. 8, 1916.

- I Bernard Afi/J I that portion of thebase which engages the of Fig. 2. i

BERNARD v. :APFELD, or. SPOKANE, whsnnvcrolvfs NUT-LOCK 3 Specification of Iiettrs Patent.-

" Patented Feb .'s, 191

' Application filed April 12, 19 15;. L s ial no. eases. j

To all whom it may 0mm.- i l Be it known that I, BERNARD V.

Spokane, in the county of Spokane and State of Washington, have invented lcertain new and useful Improvements in Nut-Locks, of

which the following is a specification.

This invention relates to improvements in nut locks of that character in which engage mentis eifected nut. I p r A feature of my invention conslstsinfthe both with'the bolt and the provision of a nut lock includinga base provided with an aperture adapted to bedisposed over the threaded portion ,of the bolt and having yielding'means' for engagement with the'inaterial or element held by the nut and bolt, and also engaging the threads of the bolt, to prevent relativejmovement of said base with respect, either to'the bolt or to the material heldjby the latter. I

A further object of the invention is to provide the base with a movable bolt thread engaging member adapted to be urged into engagement with the threads of the bolt in oppositionto a'nd'in coaction with threads of the bolt. a H

It'is a still further object ofthe invention' to equip my improved device with a nut engaging portion or holder adapted to coact with the'sli'de tobe held thereby in an engaging position, a locking member being provided for advancing the slide ;into' a threaded engagement position and also en' gaging a portion of the slide whereby all of the parts will be bolt and nut. V l 7 Other features and objects of the invention will be more fully described in'connec tion with the accompanying drawingand will be more particularly pointed out in and by the appended claims.

In the drawingsz Figure 1.is a perspective View of my improved nut-lock showing the same detached from the ,bolt, Fig. 2 is a effectively locked to the plan view of my improved 'nut lock shown applied to a bolt with "the nutrin position,

Fig. 3 isja view in side elevation ofFig. 2, Fig. 4 is an enlarged longitudinal vertical sectional view on line-t4 of Fig.1, Fig. 5 is a sectional'view on line 55 0f Fig, 4, Fig. 6 is a sectional view on line 6'6;of Fig. 2, Fig. 7 is a sectional view on line 77 Like" characters of reference designate I [simil r a citizen of the United States, resldlng at ures of, the drawing. 1

,j'As illustrated, 1 designates a bolt inserted '1 ,co how through. a part to be held, indicated at 2,-a nut. :33 being threaded onsaid bolt, as more particularly in Figs. 2 and 3. y

improved 1 device comprises a base plate 4: of elongated formation, a bore 5 being .-provided near one end thereof for projection thcrethroughof the threaded end of parts throughout the different bolt 1. The base .4 isprovided with means 1 fornot' only engaging the ;bolt but also for engagement-with the stock or element 2 to a be heldlso as to hold the one immovable against or in: other words non-rotatably with respect to the other. As shown, said means.

comprises a washerb of yielding material;

which is mutilated to form a free end 7, the

remaining end being secured to thebase 4, at 8; The lowerface of the resilient free end 7 is serrated, as indicated at 9, sothatupon compression of the washer between the stock 2 and'the base 1,.the serratedjend will 7 resist rotation of the lock with respect to the stock The bore of washer 6'is provided withi spurs 10 for engagement with. the H threads of the bolt 1 and therefore it will be seen that the washer not only functions, a

when compressed, to hold the nut lock against rotation with respect to'the stock, 1 but also, to hold the bolt against. rotation with respect toeither the stock orlock. In Fig. 3, the' washe r 6 is shownicompressed as it will appear when the nut 3 is turned home.

The base tis provided with a longitudinally extending having a tapered thread engaging knife edge 14 extending. longitudinally thereof; The,

p guideway ll, which may have overhangingmarginsto retain a slide 1 12 therein for linear movement. Slide 12 is' provided with .a ,,wedge shaped finger 131;

disposition of the finger 13 with respect to,

the spins lQ is such that they will act in opposition in' their engagement; with the threadedportion of the'bolt to anchor the nut'lock thereto, The taper of the finger l3 provides for a. wedge engagement of increasing effectiveness as the slide ;12fi s ad justed longitudinally toward the bolt 1.: The slide 12 is provided with a'shank 15 which projects from the guideway 11 and which is provided-zwith a head shoulder 17. 7. 1 l 1 A filler l8 closesthe rear end of the guide the slide away from the boltto a predeter- 16 having a locking- '110 way 11 so as to'limit retractive movement of mined extent. Extending through the basev 4: and the filler 18 is a pivot 19. A nut holder is mounted upon said pivot 19 for sliding movement around said pivot as an axis, abreast of the top of said base 4-. The,

nut holder 20 is provided with a longitu.- dinally extending slot '21 having a lateral; entrance 22. The terminal end of the nut holder 20 is bent upwardly at 23, and outwardly as at 24, the latter bend servingas a nut holding flange for engagement with the top of nuts3, as willbe seen more particuilarly'by reference to Fig; 2. I inclinethe nut engaging flange24, as will be seen more particularly by reference to Fig. 7, in such a manner as to increase the-eifectivenessof its engagement with, the nut as the nut holder approaches a final locking position. The

' entrance 22' isadapted to take about the shank '15; as the nut holder is turned about the pivot 19 in a clockwisedirection from the position shown in; Fig. l, to the position shown in Fig. 2. After the shank .15 is dis-- posed within the slot 21, then the slide 12 is free to be moved toward theboltl, and when so moved, the shank 15 will enter the end of the slot 21 and thereby positively retain the nut holder in the position shown in Fig. 2.

Reference will next be made tofan .improved locking member for'holding all of the above'named parts in a locking position.

Saidlocking member is indicated at 25 and is mounted upon pivot 19 Pivot 19"is ec centrically disposed with respect tolo-cking member 25 and the latter is provided with a, cam 26, for engagement with shank 15 to advance'the latter, and slide 12, toward bolt '1,"when locking'member. 25 is turned on pivot 19 from the-position shownin Fig. 1 to the locking position shown in Fig. 2. Locking member 25 is provided with a.ter

minalgrip to facilitate itsoperathe spring 28 nonr'otatively upon the; locking. -member.25 I may apply a rivet 30 which may extend through the spring 28 and the spacing strip 29 into member, 25 but not;

through the latter.

New in applying my lmproved lock nut, the same will-be disposed over the threaded end of a bolt; and then the nut 3 will be turned home to compress resilient split washer" 6.v The slide 12 'will'occupy a retracted'position and the nut holder 2O will be moved-into the position shown' in Fig. 2.- Then' the looking member 25 will be turned ablockwise direction from the positionshown in a a the re ia' ownB gest cam 2.6 engaging the shank 15 andadvancing the slide 12 toward the bolt 1. The tapered knife edge 141 will then be wedged tightly into an interstice between the bolt threads seated engagement against the retaining I shoulder 17 whereupon the locking member will, not only be locked itself but will hold the remaining parts in a locked position, releasing the lock nut, avsuitable sharp iniplement may beinterposed between the spring- 28 and/the head 16 so as to lift the spring 28 out ofjits seat and permit the locking member 25 to be swung into the position showriin Fig. 1,

It isbelieved that the advantages and utility of my invention will be fully understood from the foregoing description, and while I have her einshown and described on'e' speeific form of my invention, 1 do not wish to be limited thereto except for such limitations as the claims may import.

I l m 1. In nut look, a base having a bore therein for projection therethrough of the threaded end of a bolt and, provided with spurs projecting into said bore, said base having a guideway extending longitudinally thereof, a slide movable in said guideway and having a longitudinally tapered finger provided with a thread engaging knife edge acting in opposition to said, spurs, said slide having-a shank projecting, from said base and terminating in an enlarged head provided, with a retaining shoulder, a nut holder having a fla nge at one end for engaging the top of a nut provided with a slot having a laterally disposedentrance for passage about said shank to admit the latter to said slot, means pivoting saidholder onsaidbase, and a locking. member ,mounted on said pivot meansand having a cam for engagement with said shank to advance said slide into a locking position toretain said holder and said' locking member; being provided with a resilientl ocliil fz,v element adapted to spring over the head ofsaid shank and seat against said retaining shoulder, substantially as derib d 1 In a nut look, a base having a bore thereinffor, proeotio'n; therethrough of the threaded end of the bolt andprovided with a split resilient washer having spurs projecti ngv into said here and provided with a serrated end portion for engagement with the stock to be held, a slide longitudinally movably mounted on] said base andhaving a qns i lly ape e ng engagement; with the threads of the'bolt in opposition to said'spurs, said slide having a shank terminating a retaining shoulder, a nut holder pivoted on said base and provided with a slot having a lateral entrance for admission of said shank to said slot, and a locking member pivoted to said base and having a cam for engagement with said shank to advance said slide into a locking position and also provided with a resilient locking element adapted to be sprung into engagement with said retaining shoulder, to lock the several parts, substantially as described. I

3. In a nut look, a basehaving a bore therein for projection therethrough of the threaded end of a bolt, a slide longitudinally movably mounted onsaid base and having a bolt thread engaging portion, said slide having a shank terminating in a retaining shoulder, a nut holder pivoted'on said base and provided with a slot having alateral entrance for admission of said shank to said slot, and a locking member pivoted to said base and having a cam for engagement with said shank to advance said slide into the locking position and also provided with a resilient locking element adapted to be sprung into engagement with said retaining shoulder, substantially as described.

4. In a nut look, a base, a bolt engaging member slidable on said base, a nut holding member movable on said base and coacting with said slidable member to be held thereby in a nut holding position, and a locking member movable on said base for advancing said bolt engaging member into a locked position and coacting therewith to thereby hold itself and also said bolt engaging and nut engaging members in locked position, substantially as described.

5. In a nut look, a base, a bolt engaging 7 member slidable on said base, a nut holding 'member movable on said baseand coacting With'said slidable member to be held thereby a nut holding member, a pivot mounted on said nut holding member on saidbase, a locking member eccentrically mounted on said pivot and having a cam for advancing said bolt engaging member into locked relation with said bolt and into locked relation with said nut holding member, said locking member co-acting with said bolt engaging member to hold the latter and said locking member in locked positions, substantially as described. i

7. In ,a nut lock, a base, a linearly slidable bolt engaging member mounted on said base, a nut holding member pivoted on said base, and locking member pivoted on said base and co-acting with one of said first namedmembers to lock the same and the remaining member in position, substantially as described. In testimony whereof I affix my signature in presence of two witnesses.

J. J. LAVIN, EDNA BROYLES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

